Improved sectional mould for glass-ware



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nited tttrt ROBERT D. HAINES, OF CAMBRIDGE, ASSIGNOR TO THE BOSTONSILVER-GLASS COMPANY, OF BOSTON, MASSACHUSETTS.

Letters Patent No. 91,118, dated June S, 1869.

IMPROVED SECTIONAL MOULD POR GLASS-WARE.

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To all whom it may conce/rn.-

Be it known that I, ROBERT D. HAINEs, of Cambridge, in the countyoi'Middlesex, and State of Massachusetts, have invented an ImprovedSectional Mould for Glass-WVare; and I do hereby declare that thefollowing, taken inl connection with the drawings which accompany andform part of this specification, is a description of my inventionsuicient -to enable* those skilled in the art to practise it.

My present invention/relates to the organization of glass-1noulds ofthat class in which the mould (for forming goblets and similar articles)is composed, or partly composed, of movable hinged jaws, the conjoinedinner surfaces of which, when the jaws are brought together, correspondto the contour or outer form to be given to the article to be made inthe mould, (the molten or plastic glass being pressed against thedie-surfaces by the action of the plunger, or male die,) the article,when pressed,being freed, or being brought .into positionfor removal, bytaking off the cap-ring and separating the jaws.

An example of such a mould may be seen by reference-to my United Statespatent, No. 64,312.

In these moulds, however, considerable difficulty is experienced indetaching the moulded article in perfectshape and without breakage,especially when the article is much figured, or has deep projections ordepressions,- for the reason that the different parts of the'dic-surfaces of the jaws, more or less remote from the hinge whichconnects the jaws, draw awayfrom the glass (as the jaws open) more orless gradually, according to their positions relatiyelyto the hinge, andby reason of the articlebeing somewhat inaccessible when the jaws areopened.

' My improvements have particular referenceto such construction andarrangement and connection of the parts as shall ohviate thesedifficulties, and the invention consists in combining, with the hingedclampingjaws, a series of sliding mould-blocks, all of which divergefrom the axispf the mould in radial directions, (after the clamping-jawsare' opened,) while, when closed together, they form the sides of thematrix, they being held in place by the jaws when the jaws are closed. f

The invention also consists in the combination, with a mould havinghinged or -sliding die-jaws, of a ver tical pin, (upon the top o f whichthe recessed bottom of the article is formed), made to rise and lift thearticle when thempuld-jaws or sections opcnor diverge. i i

The drawings represent a mould embodying my improvements.

A'showsa-vertical central section through the bolt whichlocks the jawstogether, thejjawsbeing closed.

B is a verticall and centralcross'section, the jaws being open.` i i Cis a horizontal section on the line a: x, the jaws being closed.

D is a similar section, the jaws being open.

E is a horizontal section on the line y y.

a denotes the base of the mould, upon one side of which is mounted asliding hinge-block, b, to which are jointed the two clamping-jaws e c.

Fastened to the inner surface of the hinge-block b, is a segmental mouldor die-block, d, the inner surface of which forms a section of thematrix, or mouldingsurface of the die.

On each side of this plate d, is a similar die-block, e, orf, whichslides upon the plate a.

The adjacent sides of the three blocks d, e, f, but together when theblocks are slid inward, as seen at O, and when they are spread apart,each moves in a radial direction, and assumes the position seen at D,the die-blocks e f, and hinge-block b, each sliding radially from theaxis of the mould when they separate. The two clamping-jaws c o arefastened together at their front ends (when closed) by a bolt-pin g, andeach has projecting from it a handle, h, by grasping which the jaws areopened or closed.

The base, a, is made with a space, i, between its upper and lowerplates, 7c l, and in this space is a cam-wheel, or disk, m, a hub, fn,projecting ,from the centre of which, fits and turns in a bearing, o,Vin the plate l. At the front ofthe base 'is aslot, p, through whichprojects a handle, q, fastened to the cam-wheel, the wheel beingreciprocated by means of this handle. In the wheel are three eccentricor cam slots, or grooves, e', (as seen at E,) into each of which a pin,s, extends from the bottom of the mould-block over it.

After the article is pressed, the bolt-pin g is withdrawn, and, bygrasping the handles h, the jaws o are spread open, the mould-blocks Lle f remaining closed. lhen the cam-disk handle q, is swung around to theend of the slot p, as seen at E, and the action of the cam-slots lrthrows the pins s radially outward, each pin travelling in a radialslot, t, made through the upper base-plate k, thereby causing eachmould-block to move radially out from the pressed article, releasing thearticle from contact of all parts of the sidemoulding surfacessimultaneously.

The bottom surface ofthe moulded article is formed by the top of aplunger or pin, u, as seen at A and B. This pin is arranged to slidevertically, for which purpose it passes through the base-plate k, asseen at A and B, and works up and down in the centre of the cam-plate,or disk m, the bottom of the pin preferably having a flange, z, on theperiphery of which are teeth or projections, ru, which enter nut-threadsw, in the nnerside .of the hub n of the cam-disk m, as seen at A vand B.

Now when the mould is closed, the top of the pin u forms the bottom ofthe mould, as seen at A. But

as the mould-blocks are separated by the rotation of the cam-disk, suchrotation of the disk also forces up the pin, and the moulded articlestanding thereupon, as seen at B, such upward movement heilig caused bythe action of the rotating spiral grooves or screwthreads w, upon theteeth r.

This elevation of' the article hn'ngs it into position Where it canreadily be removed by the gatherer, and without the necessity ofdisplacing the cap-ring z, which, in all other hinged or sectionalmoulds, has to be removed to obtain access t-o the moulded alticle. Ibolt or pin this cap-ring to the base, by a series of bolts or pins, y,passing between the blocks or secr tions of the mould, as seen at A C D.

With a mould having this construction, I am enabled to produce, to greatadvantage, goblets and similar articles, of much ner quality, or greaterdegree of finish as to surface, configuration, or ornamentation, and ofmuch thinner, or more slender forms, than with hinged or sectionalmoulds, as heretofore constructed.

It will be obvious that a greater number of radiallysliding mould-blocksmay be used, they being moved outward from the article, or into positionto form the mould, as shown, or by any equivalent means, and othermechanism may be employed for sliding the three mould-blocks d ef, andfor laising and depressing the pin u; but I prefer the arrangementsubstantially as shown.

When the handle q is moved in the opposite direction to that described,the cam-slots will bring the mould-blocks together, and the screw-threadwill carry down the pin u, thus preparing the mould for the formation ofanother goblet.

1. I claim, in combination with the hinged, or clamping-jaws, thesliding mould-blocks, diverging radially from the axis of the mould,substantially as described.

2. 1 also claim, in combination with the hinged jaws, and the sectionalsliding mould-blocks, the vertically sliding pin u, substantially asdescribed.

3. Also, in combination with means for raising the pressed article, thestationary cap-ring x', substantially as described.

ROBERT D. HAINES.

Witnesses:

J. B. Cnosr, FRANCIS GouLn.

